1 They do their best work at 55ÂºF, but can carry on right down to 0ÂºF. As they eat away at organic materials, they give off a small amount of heat.  Mesophilic - Second wave of microbial activity. Most of the decomposition in a compost pile is mesophilic.
In general, it is thought that implants last approximately 10 years or should be replaced every eight to 10 years. A ruptured saline implant is clinically obvious as the breast will deflate and there will be great asymmetry. A ruptured silicone implant is more difficult to determine and is referred as a silent rupture.
There are two basic types of breast implants: saline and silicone gel. Saline-filled implants are silicone shells filled with sterile salt water (saline). Some are pre-filled and others are filled during the implant operation. Silicone gel-filled implants are silicone shells filled with a plastic gel (silicone).